VALVE MECHANISM FOR ROCK DRILLS,申请号CAD322299-传众专利搜索

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发明名称	VALVE MECHANISM FOR ROCK DRILLS
摘要
申请公布号	CA322299(A)	申请公布日期	1932.05.10
申请号	CAD322299	申请日期
申请人	THE INGERSOLL-RAND COMPANY	发明人	FRED MORTIMER SLATER
分类号		主分类号
代理机构		代理人
主权项
地址

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